TY  - CONF
AU  - Kljajević, Ljiljana
AU  - Nenadović, Miloš
AU  - Ivanović, M.
AU  - Knežević, Sanja
AU  - Mladenović Nikolić, Nataša
AU  - Vukanac, Ivana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11751
AB  - The main goal of this study was the evaluation of physical–chemical, as well as radiological properties of residual materials used for synthesis of alkali activated materials (AAMs) for the possible application as new materials in a civil engineering industry. Also, the purpose of this research was to investigate the hydrophobicity of new alumino-silicate materials and the influence of Si/Al ratio on their surface properties. Contact angle measurement (CAM) as reliable indicator of hydrophobicity was determined for synthesized AAMs using water and ethylene glycol as reference liquids. Alkali-activated materials were synthesized from various precursors: kaolin, bentonite and diatomite. Characterization of phase structure and microstructure was performed by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, Scanning electron microscopy and Energy-dispersive X-ray (SEM/EDX) spectroscopy. Contact angle measurements confirmed that the alkali-activated materials synthesized from metakaolin are the most porous, which can be explained by the smallest Si/Al ratio. The maximum value of contact angle and free surface energy (110.2 mJ/m2 ) has been achieved for alkali-activated materials synthesized by diatomite (GPMD). Concentration of 40K and radionuclides from the 238U and 232Th decay series in waste precursors, their metaphases and AAM samples synthetized by alkali activation were determined together with corresponding absorbed dose rate (D˙) and the annual effective dose rate. Natural activity concentrations in the alkali-activated materials were found to be lower than that of both residual materials and calcined ones.
PB  - Society of Chemists and Technologists of Macedonia
C3  - 26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia
T1  - Green Alkali Activated Materials Based on The Different Precursors
SP  - 23
EP  - 23
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11751
ER  - 

@conference{
author = "Kljajević, Ljiljana and Nenadović, Miloš and Ivanović, M. and Knežević, Sanja and Mladenović Nikolić, Nataša and Vukanac, Ivana",
year = "2023",
abstract = "The main goal of this study was the evaluation of physical–chemical, as well as radiological properties of residual materials used for synthesis of alkali activated materials (AAMs) for the possible application as new materials in a civil engineering industry. Also, the purpose of this research was to investigate the hydrophobicity of new alumino-silicate materials and the influence of Si/Al ratio on their surface properties. Contact angle measurement (CAM) as reliable indicator of hydrophobicity was determined for synthesized AAMs using water and ethylene glycol as reference liquids. Alkali-activated materials were synthesized from various precursors: kaolin, bentonite and diatomite. Characterization of phase structure and microstructure was performed by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, Scanning electron microscopy and Energy-dispersive X-ray (SEM/EDX) spectroscopy. Contact angle measurements confirmed that the alkali-activated materials synthesized from metakaolin are the most porous, which can be explained by the smallest Si/Al ratio. The maximum value of contact angle and free surface energy (110.2 mJ/m2 ) has been achieved for alkali-activated materials synthesized by diatomite (GPMD). Concentration of 40K and radionuclides from the 238U and 232Th decay series in waste precursors, their metaphases and AAM samples synthetized by alkali activation were determined together with corresponding absorbed dose rate (D˙) and the annual effective dose rate. Natural activity concentrations in the alkali-activated materials were found to be lower than that of both residual materials and calcined ones.",
publisher = "Society of Chemists and Technologists of Macedonia",
journal = "26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia",
title = "Green Alkali Activated Materials Based on The Different Precursors",
pages = "23-23",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11751"
}

Kljajević, L., Nenadović, M., Ivanović, M., Knežević, S., Mladenović Nikolić, N.,& Vukanac, I.. (2023). Green Alkali Activated Materials Based on The Different Precursors. in 26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia
Society of Chemists and Technologists of Macedonia., 23-23.
https://hdl.handle.net/21.15107/rcub_vinar_11751

Kljajević L, Nenadović M, Ivanović M, Knežević S, Mladenović Nikolić N, Vukanac I. Green Alkali Activated Materials Based on The Different Precursors. in 26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia. 2023;:23-23.
https://hdl.handle.net/21.15107/rcub_vinar_11751 .

Kljajević, Ljiljana, Nenadović, Miloš, Ivanović, M., Knežević, Sanja, Mladenović Nikolić, Nataša, Vukanac, Ivana, "Green Alkali Activated Materials Based on The Different Precursors" in 26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia (2023):23-23,
https://hdl.handle.net/21.15107/rcub_vinar_11751 .